Refrigerating appliance for cold-storage rooms



C. A. MOORE Jan. 20, 1931. i

REFRIGERATING APPLIANCE FOR coLn s'roRAaE Rbous Filed llay 2. 1929 2 Sheets-Sheet 1 Jan. 20,1931. c.-A. MOORE 1 1,789,592

REFRIGERATING APPLIANCE FQR COLD STORAGE ROOMS Filed May 2. 1929 2 Sheets -Sheet 2 V 7- 19 1 i I w 4 53 d o 47 21 23 7+ p j F7 .3. 55 v 34 9 amnion Char/es-fl-Mobre anoznaqs the room.

Patented Jan. 20, 1931 UNITED? s1);

CIFHARLESHA. moons, or EDI'NA, mmnnsorn REFRIGERATING APPLIANCE non COLD- steamer: ROOMS Application filed Kay 2,

k This invention relates to refrigerating ap'- cent surfaces will become joined bythe acpliances for cold storage rooms.

An object of the invention is to provide a simple, eiiicient easily installed apparatus which does not talxe up any floor space. Another object of the invention is to provide simple and effective refrigerating means for a cold storage room adapted to cause a natural, convective and difi'used cir culation of air within the room by gravity.

Another object of the invention is to in clude fans in such an appliance adapted to stimulate the natural convective and diffused circulation of A further object is to provide, in connection' with an installation as above indicated,

means whereby a controlled quantity of fresh airmay be introduced, and a regulated proportion of the interior air may be exhausted from the room.

The Narious further objects and advantages will more fully appear from the detailed description.

In the drawings illustrating the invention,'-Fig. -1 is a vertical longitudinal sectional view of my improved apparatus installed in a room, parts being broken away for the sake of convenience, in illustration; Fig. 21s a cross sectional vlew, taken as on the line 2-2 of.Fig. 1; Fig. 3 is a similar. View taken along line 33 of F 1g. 1.

Referring to the drawings, 4 designates the floor of a room; 5, the celhng; 6, the end 35 walls and 7, the side walls. My improved apparatus includes a cooling coil 10 of a novel construction, hereinafter to be more fully described, suspended from .the ceiling 5, centrally thereof, in any suitable manner, as by the U-shaped hangers 11. The convolutions of the coil are so formed as to \constitute" ,a plurality of 'adjacen'laparallel lengths of pipe 12, 13, 14 etc., which iii their general disposition form an upper and lowerchanneI aving a common base. Through thesechannels the air may pass and become cooled through contact with the pipe surfaces or with frost formed upon said surfaces. It may be noted that, with the pipe lengths of the coil relatively disposed as inair conditioned within:

1939: serial No. 359,802. v

dicated in Figshl and 2, theiclosely adja cumulation of frostthereon.

Referring particularly to Fig. 2,-it,wi1lbe seen that .the upper and lower channel members are formed by the parallel lengths of pipe forming openings 15 and 16 respectively., These openings extend the entire length of, the coil,- but are narrower than the interiorof tl1e.Ch3.IlI 1elS.' The channels con-- ,9 stitute air ducts in which air is cooled assitgravitates theretli'rough in a natural man-' ner or is forced along the same by, mechanical means now to be described 7 Referring to Figs. 1 an'd2, the mechanical no air circulating means consists of a'plurality of motor fans, preferably four in number, located adjacent to the' extremities, of the channels. 7 Fans l? and 18, driven, respec-' tively' by motors 19 and20, draw the air in -70 opposite directions -from the ends of the up per channel, and fans -21 and 22' driven,;.iu3 spectively, by motors 23 and 24, f0rcerthd] air so drawn from the upper channel the lower channel throu h itsextreniities (5 ward the middle thereo' suitabletpassagei .1 ways 25 and "26 are provided for kitiiiducting the air from the ends of the'vupper channel to the ends of the lower channels} These sageways 25 and 26 may madeiof sheetee metal, or other suitable rial, -so as form arcu'atechambers "-27 and 28',-

- these chambers are divided into up," 1 and lower portions'by plates 29 and 30, w ichea: tend from the mouths of the'chamber'spai't way into the interior thereof' The motors 219 and 23- are mounted, respectively, on the top and bottom of plate 29 and the'motors 20 and 25L are similarly mounted on the plate I 30. This construction,-it will be noted, r6 vides' a passage'for the air from the on of the upper channel through the chambers and 28 into the-l0werchannelthrough the respective ends thereof, as clearly appears. from the arrows in Fig. 1.

The apparatus so far described provides for the recirculation of the airwithin'the room. For introducing fresh air into rthe conduit 31 is drawn along with the other air by the fan 18 and-then forced into the lower channel by the fan 22, the fresh air being cooled, as will be readily understood,

. and then circulated downwardly through the opening at the bottom of the lower channel. To exhaust air from the interior of the room, an upright exhaust conduit 43 is suit ably'located within the room and supported in any suitable manner, as on feet 44 resting on the floor and hangers attached to'thef ceiling. Intermediate the ends of this conduit is a branch conduit 43 which extends through the Wall of the'room and opens into the outer air. Dampers 46 and 47, located in conduit 43 adjacent to the top and bottom thereof, control the escape of air from the upper and/or lower portion of the room, as occasion may require. a A (pair of bafile plates 33 and 34 are provide spaced from the coil 10 at each side thereof. These baflle plates ma extend lon gitudinally along the length of t e coil and be supported in any suitable manner, as from hangers 35 and 36 attached to the ceiling.

Between these plates 33.and 34 and coillO, are formed vertical passageways 37 and 38 through which the air may circulate, as shown by the arrows in Fig. 2. These bafl'le plates may also serve to provide suitable supports for the pasageways 25 and 26 and the enclosed motors. Thus the plates 29 and 30 maybe reinforced by plates 39-and 40 and these plates, passing through the side walls of the chamber 26 and 27, may be attached to angle irons 41 and 42 secured to the baflle plates.

It may be noted, that, as, in the course of the operation of the apparatus, the adjacent pipe lengths of the coil become frosted 'together they will constitute channels open at the top and at the bottom and at the ends through which the air may circulate. The row of pipe lengths 48, 49, form the horizontal partition between the upper and lower channels and the pipe lengths 12 and 51, at the bottom, and 52 and 53'a-t the top, form the constricted openings 15 and 16 extending the length of the channels, through which the air is admitted and from which the air is exhausted in the operation of the apparatus.

The coil 10 may be formed'of one continuous length of pipe, into which the cooling liquid may be admitted at one .end and discharged at the other end. Thus, if the mix- Patent is;

- 1. A refrigerating appliance comprising a ture is admitted into pipe 54 (Fig. 1), forming a continuation of the horizontal pipe length55 (Fi s. 1 and 2), the coil may wind back andfort downward to lengths 14,13, 12, 51, etc., then upward to len hs. 53, 52 and 56, and then downward and si ewise through lengths 48 and 49, finally ending at the length 50. With the dampers 46, 47 and 32 closed and with fans 17, 18, 21 and 22 idle, a convective and diffused internal cirizulation of air is established within the room by gravity. The air along the ceiling, in proximity to the coil, descends into the up er channel thereof. and travels along this-c annel to its open ends, the air at either side of the medial point traveling in the direction of the adj a cent end. Leaving the upper channel at its ends the air flows through the passageways 26, 27 into the lower channel and being effectively refrigerated in the coil descends -therefrom through the opening 16 along the bottom thereof. Also, at either side of the coil and between it and the bafile plates 33 and 34, the air, upon becoming cooled, settles' to the lower portion of the room. This air, affected by the relatively warm lading and by the relatively warm walls of the room divides and ascends to the ceiling of the room and thence moves along the ceiling toward position over the openin 15 in the coil 10, thus completing the circuit. The opening of the damper 32 attended with the opening of one or the other or both of dampers 46, 47 provides for the ingress of air to and the egress of'air from the room. The freshening of theair by thus ventilating the room may be stimulated by operating the fan 60. In this v connection, it me; be noted that the temperature of the incoming fresh air will be reduced in commingling with the recirculating air within the channels of the coil. The fan motors 19, 20, 23 and 24, like the motor of fan 60, are independently operable. The circulation of the air, therefore, may be stimulated decreasedflow. Further, the effect desired may require election between the companion fans of each pair. I I It-will be understood, of course, that various modifications in construction may-be resorted to without departing from the spirit of the invention as setforth in the accompanying claims. J

Having described my invention, what I claim as new and desire to protect by Letters channel in opposite directions from mid cooling coil, forming a'horizontal channel open along the to thereof, and means for causlng the airto ow longitudinally of said length thereof.

2. A refrigerating appliance comprising a cooling C011, forming a horizontal channel Iopen along itsftop, and a fan disposed at each end of said channel to draw the air longitudinally in opposite directions "from mid-length thereof. I v

:3. A refrigerating'appliance "comprising a cooling coil, disposed, adjacent the ceiling of the room, saidcoil'forminga horizontal channel opening downward f'alon'g thefsame and open at its ends, and ineans for forcing air- 1 into said channelfiein" both'jends thereof.

4. A refrigeratinglappliance comprising a.

"cooling coil, forming'a double horizontal channel, one of said channels-opening upward substantially along the entire length thereof and the other opening downward subs'tan tially-along its entirelength, and means for "thereof and forcing the air so drawn into the drawing a1r longitudinally from said upwardly opening channel ,from both ends opposite ends of the' downwardly opening channel longitudinally thereof. I v 5. In combination, a room structure, a refrigerating appliance disposed longitudinalv ly of the room near the ceiling centrally thereof'and comprisinga coil, forming longitudinally exten'dingupper and-lower channels having a common base, said'upper channel opening upwardly-and the lower channel openingdownwardly, and means'for drawing air from each end of the upper channel and forcing'it into each end of the lower channel.

6. A refrigerating appliance comprising a cooling chamber forminga double horizontal channel, said channels having restricted openings therein extending substantially the entire length thereof, and being also open at their ends, and means for drawing air from both ends of the upper channel and forcing it into the ends ofthe lower channel.

7 A refrigerating appliance comprising longitudinally extending, upper and lower cooling channels having openings at their top and bottom sideslrespectiv'ely, and-open at their corresponding ends,'and a connecting passagewaybetween the open end of one channel and the adjacent o en'end of the other channel, and a pair of ans disposed-in said passageway, one adj acent the open end of 1 the upper channel and the other ad'acent the open end of the lower channel, said ans being adapted to draw air from the upper channel and force it into the lower channel.

8. A refrigerating appliancecomprising horizontall extending upper and lower cooling channe s, disposed adjacent tov the ceiling of the room to be cooled, said channels having openings along the top and bottom sides thereof respect1vely,-and openjat correspond ing ends thereof, and an arcuate passageway connecting the open ends of the upper and lower channels and having a horizontal partition therein, and fans mounted on the upper and lower sides of said partition to draw the air from the end of the upper channel and force it 'into the communicating end of the lower channel.

9. A refrigerating appliance comprising a cooling coil, forming horizontal upper and lowerchannels disposed adjacent to the ceiling of the room to be cooled, said channels opening upwardly and downwardly respectively substantially the entire length thereof,

said channels being'also open at their ends,- passageways, one at each end of the coil, each passageway connecting adjacent ends. of the upper and lower channels, and having a horizontal partition therein, and fans mounted on the upper and lower sides of the partition to draw the air from one end of the upper channel and to force it into the adjacent end of the lower channel.

10. In combination, a room structure, a refrtgerating appliance disposed longitudinally of the room near the ceiling centrally thereof and comprising a channel structure I 4 including afirst cooling channel and a second cooling channel, each opening therealong into atmosphere into said first channel, and means 4 for theegress of air from the room.

11. In combination, a room structure, a refrigerating appliance disposed longitudinally .of the room near the ceiling centrally thereof and comprising a channel structure including a first cooling channel and a second cooling channel, each opening therealong into the room, the firstat a higher elevation than the second, passageways, one at" either end of the channel structure, each pasageway bringulllg into communication the adjacent ends 0 channels at one extremity of the channel 4 structure, and independently foperable fans,

two in each of said passa eways, said fans I .being adapted'to draw air rom the opposite ends of the first channel and force it into the opposite ends of the second channel through Said passageways. I v

12. In combination, a room structure, a re-.

frigerating appliance disposed longitudinally; of therooin near the ceiling centrally thereof and comprising'a channel structure including a first coolingchann'el and a second cooling channel, each opening therealong into the 1 room, thefirst at a higher elevation than the second, passageways, one at either end of the channel structure, each passageway bringing into communication the adjacent ends of the channels at one extremity of the channel structure, fans, one in each of said pasageways, said fans being adapted to draw air from the op osite ends of the first channel and force it into the opposite ends of the second channel through said passageways, a

conduit for introducing air from the outer.

atmosphere into said first channel, a fan in said conduit for stimulating the inflow of air therethrough, and means for the egress of air from the room.

13. In combination, a room structure, a refrigerating appliance disposed longitudi- I channels nally of the room near the ceiling centrally thereof and comprising a cooling coil having a plurality of paralleled closely. adjacent lengths of pipe connected so as to form one' the inlet to the outlet thereof, said lengthsbeing disposed so as to form two horizontal aving a common base and open at their ends, and means bringing the correa as . spondin open ends of said channels into communlcation with each other. 15. An appliance of the character described comprising1 acoil fora temperature afl'ecting medium aving a plurality of parallel lengths ofpipe connected so as to form a continuous duct from the inlet to the outlet I thereof, said lengths being disposed so as to nal form two horizontal channel structures open at their ends and having a common base, one channel structure having a restricted longitudinal opening in the upper portion thereof and the other channel structure having a similar opening in the lower portionthereof, and means bringing the corresponding open ends of said channels into communication with each other.

16. In combination, a room structure, a re-' frigerating appliance disposed longitudiy of the room near the ceilingthereof and comprising conducting means for a circulatory refrigerating medium, said means forming a' horizontal passageway for air opening along the lower portion thereof into the interior of the room, and means for introducing fresh air from the outer atmosphere into said passageway,.lengthwise thereof. 1

17. In combination, a room structure, a refrigerating appliance. disposed longitudinally of the room near the ceilin thereof and comprising conductin means or'a circula tory refrigerating me ium, said means forming a' horizontalpa'ssageway for air opening along the lower portion thereof into the interior of the room, means for impelling air from the interior of the room into said passageway at one end lengthwise thereof, and means for refrigerating said air' prior to its passage into said passageway.

18. In combination, a room structure, a refrigerating appliance disposed longitudinally of the room near the ceiling thereof and comprising conducting means for a circulatory refrigerating medium, said means forming a horizontal passageway for air opening along the lower portion thereof into the interior of the room, means for impelling fresh air from the outer atmosphere into said passageway at one end lengthwise thereof, and means for refrigerating said fresh air prior to its passage into said passageway.

19. In combination, a room structure, a refrigerating applicance disposed lon itudinally of. the room near the ceiling t ereof and comprising conducting means for a circulatory refrigerating medium, said means forming a horizontal passageway for air opening along the lower portion thereof into the interior of the room, means for impelling fresh air from the outer atmosphere into said passageway at its opposite ends, lengthwise thereof,. and means for refrigerating such fresh air prior to its passage into said passa eway.

20. n combination, a room structure, a

refrigerating appliance disposed longitudinally of" the room near the ceiling thereof and comprising conducting means for a circulatory refrigerating medium, said means forming a .horizontal passageway for air .opening along the lower portion thereof into the interior of the room, means for impelling air from the interior of the room into said passageway at its opposite ends, lengthwise thereof, and means for refrigeratin such air prior to its introduction to sa1d passageway.

21. In combination, a room' structure, a refrigeratingappliance disposed longitudinally of the room near the ceiling thereof.

and comprising conductingmeans for a circulatory refrigerating medium, said means forming a horizontal passageway for air opening along the lower portion thereof into the interior of the room, and means for impelling air from the interior of the room into said-passageway atits opposite ends, lengthwise thereof. 1

22. In combination, a room structure, a refrigerating appliance disposed longitudinally of the room near the ceilin thereof and comprising; conducting means %or a circulatory refrigerating medium, said means forming a horizontal passageway for air opening along the lower portion thereof-into the interior of the room, and means for introducing fresh air from the outeratmosph-ere into said passageway at its opposite.

ends, lengthwise thereof.

23. In combination, a room structure, an

appliance disposed longitudinally of the room near the ceiling and comprising conducting means for a temperature affecting medium, said means forming longitudinally extending channels opening into the room at different elevations, and means bringing the corresponding ends of said channels into communication with each other.

In testimony whereof I have aflixed my signature to this specification.

CHARLES A. MOORE. 

